Sash-lock.



' PATENTED 13130.24, 1907.

P. ALGARROLL.

SASH LOCK.

"APPLICATION FILED APR. 7, 1906.

g I 1n? emu FRED ALLEN CARROLL; OF PENN YAN, NEW YORK.

SASH-LOCK.

Specification of Letters Patent.

Patented Dec. 24, 1907.

Application filed April '7, 1906. Serial No. 310.544.

To all whom it may concern:

Be it known that I, FRED ALLEN CARROLL, a citizen of the United States, residing at Penn Yan, in the county of Yates and State of New York, have invented certain new and useful Improvements in Sash-Locks, of which the following is a specification.

This invention relates to sash locks, the object of the invention being to provide a simple, cheap and effective sash lock by means of which the sashes of a window may be held at any desired elevation, partially open or fully closed, the sash look as a whole being applicable to any ordinary window without the aid of an expert and without cutting or marring the sashes or the window frame.

With the above and other objects in view, the invention consists in the novel construction, combination and arrangement of parts as hereinafter fully described, illustrated and claimed.

In the accompanying drawings: Figure 1 is an inside elevation of a window, showing the locking mechanism applied thereto. Fig. 2 is an enlarged sectional elevation of the main lock for the lower sash and Fig. 3 is a top plan view of the lower sash lock.

In the drawings, 1 designates the lower sash, 2 the upper sash and 3 the window frame or casing.

The main sash lock shown in detail in Fig.

2 comprises a suitable casing 4 of general rectangular shape and having the front side thereof closed by a removable-casing plate 5 as shown in Fig. 1. The back 6 of the casing rests against the inner face of one of the side bars of the sash 1 and has the integrally formed top and bottom flanges 7 and 8 which form guides for the yoke and bolts hereinafter described, the front casing plate 5 being secured in place by means of screws or rivets 9 which pass through the back plate 6 as shown in Fig. 2.

10 designates a pair of bolts which are carried by a yoke comprising a connecting bar 11 and backwardly extending arms 12 which slide in contact with the inner surfaces of the flanges 7 and 8 of the casing as shown in Fig. 2, the yoke and the bolts being guided thereby. At their inner ends, the arms 12 are provided with inwardly extending lugs 13 and just inside of the lugs 13, the arms 12 are provided with notches 14 to receive the rounded extremities of the elbow extensions or arms 15 of a pair of elbow levers 16,

mounted at their elbows on pivots 18 within the casing. The elbows 15 rest behind the lugs 13 and cooperate therewith in shifting the yoke and the bolts carried thereby.

Mounted between the levers 16 is a lever separating spring 19 having oppositely arranged spring arms, the extrem1t1es of which bear against the inner faces of the levers 16 to normally hold the outer ends of saidlevers apart as shown in Fig. 2, said spring being connected to a stud 20 which holds the spring in place. The spring is shown as connected to the stud by bending the central ortion or body of the spring into the form 0 an eye which encircles the stud, While the arms of the spring extend between the pivots 18 and sufficlently beyond the. same to exert the necessary pressure on the levers 16 to hold the latter apart at their outer ends as shown in Fig. 2.

The outer extremities of the levers 16 are provided with finger pieces 21 to facilitate pressing the levers toward each other and in connection with the levers 16, I employ a latch 22 which is pivotally connected at 23 to the casing and provided with op ositely located shoulders 24, which, when t e latch is swung forward on its pivotal connection with the casing, engage the levers 16 and hold the same toward each other, thereby holding the bolts 10 retracted to a position where they cannot engage the rack plate or strip B.

The bolts 10 engage the sockets A in the socket strip B extendingv lengthwise of the inner face of the jamb or window frame 3, as shown in Figs. 1 and 2. Said strip B is preferably formed of metal and provided with holes to receive suitable fasteners a by which it is held in place and the sockets A are located at the proper distance apart to simul taneou sly receive the bolts 10 carried by the sliding yoke hereinabove described.

By means of the locking device, the lower sash may be locked at any desired height, either partially open or wholly closed. The locking mechanism is located on the inner side of the window, and therefore cannot be tampered with from the outside.

I claim:

The herein described sash lock com rising a casing, a yoke, a pair of bolts carried by said yoke and mounted to slide within the casing, said yoke having oppositely arranged, inwardly extending lugs, a pair of finger levers pivoted within the casing and provided with outwardly extending elbow projections l vers and maintaining the bolts in a retracted cooperating with said lugs of the yoke for position. 10 shifting said yoke and the bolts carried there- In testimony whereof I affix my signature by, a separating spring mounted within the in presence of two witnesses.

casing between said elbow projections, said FRED ALLEN CARROLL. spring being mounted upon a pin and having WVitnesses:

two arms which bear outwardly against the ABRAHAM GUDLEY,

finger levers, and a latch for holding said le- HARRY O. VAN SLYKn. 

